Eccube\Entity\Order::calculateSubTotal PHP Метод

    public function calculateSubTotal()
    {
        $subTotal = 0;
        foreach ($this->getOrderDetails() as $OrderDetail) {
            $subTotal += $OrderDetail->getPriceIncTax() * $OrderDetail->getQuantity();
        }
        return $subTotal;
    }

 /**
  * 小計を取得
  *
  * @param Order $Order
  * @return int
  * @deprecated since 3.0.0, to be removed in 3.1
  */
 public function getSubTotal(Order $Order)
 {
     return $Order->calculateSubTotal();
 }